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Age-related change in executive function: Developmental trends and a latent variable analysis
This study examined the developmental trajectories of three frequently postulated executive function (EF) components, Working Memory, Shifting, and Inhibition of responses, and their relation toExpand
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Genome-wide association analyses identify 44 risk variants and refine the genetic architecture of major depression
Major depressive disorder (MDD) is a common illness accompanied by considerable morbidity, mortality, costs, and heightened risk of suicide. We conducted a genome-wide association meta-analysis basedExpand
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Severity Indices of Personality Problems (SIPP-118): development, factor structure, reliability, and validity.
This article describes a series of studies involving 2,730 participants on the development and validity testing of the Severity Indices of Personality Problems (SIPP), a self-report questionnaireExpand
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Factor analysis of variables with 2, 3, 5, and 7 response categories: A comparison of categorical variable estimators using simulated data
Two estimators in the factor analysis of categorical items are studied, the weighted least squares function implemented in the tandem PRELIS-LISREL 7 and a generalized least squares functionExpand
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TATES: Efficient Multivariate Genotype-Phenotype Analysis for Genome-Wide Association Studies
To date, the genome-wide association study (GWAS) is the primary tool to identify genetic variants that cause phenotypic variation. As GWAS analyses are generally univariate in nature, multivariateExpand
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A solution to dependency: using multilevel analysis to accommodate nested data
In neuroscience, experimental designs in which multiple observations are collected from a single research object (for example, multiple neurons from one animal) are common: 53% of 314 reviewed papers from five renowned journals included this type of data. Expand
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Statistical power
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A dynamical model of general intelligence: the positive manifold of intelligence by mutualism.
Scores on cognitive tasks used in intelligence tests correlate positively with each other, that is, they display a positive manifold of correlations. The positive manifold is often explained byExpand
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On the likelihood ratio test in structural equation modeling when parameters are subject to boundary constraints.
The authors show how the use of inequality constraints on parameters in structural equation models may affect the distribution of the likelihood ratio test. Inequality constraints are implicitly usedExpand
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Stability in symptoms of anxiety and depression as a function of genotype and environment: a longitudinal twin study from ages 3 to 63 years
Background. The influence of genetic factors on major depressive disorder is lower than on other psychiatric disorders. Heritability estimates mainly derive from cross-sectional studies, andExpand
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